Use of Viton in sour service
Use of Viton in sour service
(OP)
Hello,
I have found conflicting information regarding the use of Viton in sour service. Does anyone have experience with Viton in sour service and is there a H2S limit for Viton?
Thanks!
I have found conflicting information regarding the use of Viton in sour service. Does anyone have experience with Viton in sour service and is there a H2S limit for Viton?
Thanks!





RE: Use of Viton in sour service
RE: Use of Viton in sour service
As the previous resonder aluded to, there are now several different types/grades of Viton, so you need to be very specific when specifying elastomers using this tradename. Traditional vinylidene fluoride-based fluorelastomers (ASTM D 1418 designation of FKM) are not suitable for sour conditions. Many of the Viton grades are FKM elastomers. Newer formulations like VTR-8802 are copolymers of tetrafluoroethylene and propylene, called either TFE/P or FEPM which is the ASTM D 1418 designation. This type of fluoroelastomer is suitable for sour service. The other type of elastomer that has good resistance to H2S is called perfluoroelastomer (FFKM designation). Kalrez is the DuPont tradename for these materials. Go to the DuPont Elastomers website for more info:
http://www.dupontelastomers.com/
RE: Use of Viton in sour service
Steve Jones
Materials & Corrosion Engineer
http://www.pdo.co.om/pdoweb/
RE: Use of Viton in sour service
Steve Jones
Materials & Corrosion Engineer
http://www.pdo.co.om/pdoweb/
RE: Use of Viton in sour service
RE: Use of Viton in sour service
NACE TM0187-2003 Evaluating elastomeric materials in sour gas environments
these reports from HSE can give you some good advise:
Elastomers for fluid containment in offshore oil
and gas production: Guidelines and review
http://www.hse.gov.uk/research/rrpdf/rr320.pdf
Elastomeric seals for rapid gas decompression applications in high-pressure services
http://www.hse.gov.uk/research/rrpdf/rr485.pdf
Try also these corrosion guides:
h
http
hope this help
S
Metal Corrosion